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#24: 08-19-2010, 06:34 PM
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Originally Posted by Th3Franz View Post
TI have a background in power electronics so I am designing a circuit that will use the stock fuel pump control to reduce the speed of the pumps for idle and low load situations.
How about just use the stock ECU PWM output to drive a power mosfet? You really have no reason to run the thing at 100% most of the time (it will DECREASE the life of the pump), just let the ECU do it's thing but with less total inline resistance fore the pump?

Originally Posted by Boostin View Post
Does the fuel pump controller vary the voltage through resistors? Or is the pump somehow pulsewidth modulated?
It's PWM.

Last edited by utc_pyro; 08-19-2010 at 10:05 PM..
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